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GLOW PLUG CONTROL DRIVE METHOD AND GLOW PLUG DRIVE CONTROL SYSTEM

  • US 20130255615A1
  • Filed: 12/06/2011
  • Published: 10/03/2013
  • Est. Priority Date: 12/16/2010
  • Status: Active Grant
First Claim
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1. A method of controlling the driving of a glow plug in a glow plug drive control system which enables driving to energize the glow plug, the system comprising:

  • a glow switch, a stabilizing coil, and a glow plug that are series-connected, a battery voltage being applied to one end of the glow switch, another end of the glow plug being connected to a ground; and

    an electronic control unit that controls the opening and closing of the glow switch,the method comprising;

    performing opening and closing of the glow switch, with a repetition frequency of PWM signals, that control the opening and closing of the glow switch, a higher frequency than a repetition frequency in a normal drive state upon commencement of the driving of the glow plug, andreturning the repetition frequency of the PWM signals to the frequency during normal driving when a predetermined drive shift condition has been met.

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